I don't understand how people could do this

What's in the mind of a killer? That's the big question. No one really knows. Selfishness, jealousy, conceited love, etc..etc... There could be a hundred things goin' on a killer's mind.

I don't a killer experiences emotions at the time they kill, or at least no emotions of regret or pity. There are killers that regret what they've done, but the psychopaths seem to never regret their actions. They never developed a consicious, no right from wrong, they just want to get their way and they wipe everything of the map that stands in their way. Unfortunatly I believe anyone that has been through enough bad things and has biological chemistry that fits might become a murderer; there are so many different types it's hard to tell who has it in them to kill or not. Killing is inside human nature to survive, perhaps we could see it as a very, very old urge that some people have that have not been able to get civilized by the world around them? It's an intreging (?) but difficult subject.

I totally agree with sammer chick coz its a main thing ... But dear if there is the cuerlness then there is an other talk came .... coz no one is so curel to kill some but dear fr. by my point of veiw .. the life of the killer what his previus life says .....coz the main point is there in his past life .. if some body done some curel with him so he came in revenge.. so he /she became curel in teir further livies....

People kill for numerous amounts of reasons. One motive may be revenge. Usually, when someone kills out of vengeance, they do not think clearly, resulting in the instant decision to kill based on anger. Though most vengeful killings are not thought through or premeditated, some killings are. Certain vengeful killers filled with jealousy, anger, hatred, or a hunger for revenge may plan the definitive killing of a person or group of people using an intricate plan thought out for days, months, or even years. Although revenge may be one of the main reasons people kill, it is not the only one. Dedicated murderers, serial killers, or those who are clinically insane murder people as a living. These killers think of it as a way of life, as if killing is like oxygen; they need to kill to live and breathe. Many of theses killers have sick minds that fabricate convoluted thoughts of torture, mutilation, rape, and any other horrible thing their mind can think of to carry out on their victims. These sick men and women become ill from a number of reasons. These reasons may be simple, such as being born with the mental illness, or more complex and scarring situations in which the killer was abused or molested as a child. Any cause can lead to the psychological damage of someone, thus producing an insane serial killer, but no matter the reason for someone being clinically insane and unstable, the consequences remain the same.